{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-23759 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-23759 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-23759 is a high-severity denial of service vulnerability in Facebook fizz, published on 18 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-23759 and fix it if it is affected.\n\nWhat it is: CVE-2023-23759 is a high-severity denial of service vulnerability in Facebook fizz, published on 18 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-23759 in the wild and no public exploit code.\n\nAffected product: Facebook fizz. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-23759/ (Markdown: https://insights.sbomify.com/CVE-2023-23759/index.md)","id":"CVE-2023-23759","markdown":"https://insights.sbomify.com/CVE-2023-23759/index.md","name":"CVE-2023-23759","record":{"aliases":["GHSA-2x3r-3grm-f4ww"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Fizz TLS library","requires_auth":"none","summary":"A remote attacker can crash the application using the Fizz TLS library by manipulating cipher advertisements during the TLS handshake.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"fizz","vendor":"facebook"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"There is a vulnerability in the fizz library prior to v2023.01.30.00 where a CHECK failure can be triggered remotely. This behavior requires the client supported cipher advertisement changing between the original ClientHello and the second ClientHello, crashing the process (impact is limited to denial of service).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Denial of service in fizz","id":"CVE-2023-23759","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Path traversal in GitHub Enterprise Server leading to remote code execution","id":"CVE-2023-23760"},"packages":[],"prev":{"headline":"Extension - creative-solutions.net - SQLi in Creative Gallery component for Joomla \u003c= 2.2.0","id":"CVE-2023-23758"},"products":["fizz"],"published":"2023-05-18","related":[{"cvss_score":7.5,"headline":"Denial of service in fizz","id":"CVE-2019-11924","kev_date_added":null,"published":"2019-08-20"},{"cvss_score":7.5,"headline":"Denial of service in fizz","id":"CVE-2019-3560","kev_date_added":null,"published":"2019-04-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-21","vendors":["Facebook"]},"summary":"A remote attacker can crash the application using the Fizz TLS library by manipulating cipher advertisements during the TLS handshake.","url":"https://insights.sbomify.com/CVE-2023-23759/"}